Bidirectional conversion between microwave and light via ferromagnetic magnons
By R. Hisatomi, A. Osada, Y. Tabuchi, T. Ishikawa, A. Noguchi, R. Yamazaki, K. Usami, Yasunobu Nakamura. 2016
327 citations recorded by the source corpus.
Coherent conversion of microwave and optical photons in the single quantum level can significantly expand our ability to process signals in various fields. Efficient up-conversion of a feeble signal in the microwave domain to the optical domain will lead to quantum-noise-limited microwave amplifiers. Coherent exchange between optical photons and microwave photons will also be a stepping stone to realize long-distance quantum communication. Here we demonstrate bidirectional and coherent conversion between microwave and light using collective spin excitations in a ferromagnet. The converter consists of two harmonic oscillator modes, a microwave cavity mode and a magnetostatic mode called the Kittel mode, where microwave photons and magnons in the respective modes are strongly coupled and hybridized. An itinerant microwave field and a traveling optical field can be coupled through the hybrid system, where the microwave field is coupled to the hybrid system through the cavity mode, while the optical field addresses the hybrid system through the Kittel mode via Faraday and inverse Faraday effects. The conversion efficiency is theoretically analyzed and experimentally evaluated. The possible schemes for improving the efficiency are also discussed.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/ca2391ac36e99a5a39acc2daa283108201d0c0c5
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In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
Citations in the corpus
- Coherent Conversion Between Microwave and Optical Photons—An Overview of Physical Implementations (2019, unknown): “Up-conversion efficiency in current experiments is low, with best results of η ∼ 10 [81].”
- Quantum information processing with superconducting circuits: a review (2016, background): “They recently demonstrated strong coupling between single magnons in a magnetostatic mode in the sphere and a microwave cavity mode [252, 253], including bidirectional conversion [254].”